Shelly 1PM Gen 3 Wiring Help

[Wadsworth]

Hi,

I am trying to connect a Shelly 1PM Mini Gen 3 to a simple 2 way light switch which turns on an outside light (which is part of a 3 gang switch controlling different lights) . I have wired as shown in my photos but the fuse tips as soon as I turn the power back on regardless of whether the new wired switch is on or off. I am UK Based

2 of the photos show the existing, working wiring for the switch. There is a live brown wire going into the COM seciton of the switch and a blue wire with brown tape going into the number 1 hole in the switch.

I have then shared photos of my wiring on the Shelley relay as per the installation video. I used the black wires with blue tape around them as the neutral wire (also in a photo). I used the wire going into the COM part of the switch as the live wire and the blue wire with broan tape going into number 1 on the switch as the ‘Load’ wire.

Does anyone know why my fuse is tripping when I try to restore power? - have I wired this incorrectly?

Thanks for the help!

[AutoDIY (Ettore)]

Hello,

Are you sure you have neutral there?

It looks like you have only live regardless colors.
The blue wire with brown tape goes to grey/black wires are these N or L?

If you have no Neutral then you are shortcutting powering( L and N connected wires) on shelly tripping the fuse.

In a two way switch usually there is incoming L and 2 outgoing L.
Then I am not UK Based so rules for wiring might be different.